docs: def subscribe(self, *args, **kwargs):
          """
          Subscribe to a publish port. Example:
          `vexbot: !subscribe tcp://127.0.0.1:3000`
          """
          for address in args:
              try:
                  self.messaging.subscription_socket.connect(address)
              except Exception:
                  raise RuntimeError('addresses need to be in the form of: tcp://address_here:port_number'
                                     ' example: tcp://10.2.3.4:80'
                                     'address tried {}'.format(address))